Note 3 Business Combinations (Tables)

6 Months Ended

Sep. 30, 2014

Business Combinations [Abstract]

Schedule of Business Combination Recognized Identifiable Assets Acquired, Goodwill and Liabilities Assumed, Net [Table Text Block]

		Purchase Price Allocation
		(unaudited)
Inventories		$	800
Property, plant and equipment			36
Identifiable intangible assets			24,000
	Total identifiable net assets		24,836
Goodwill			25,164
	Total purchase price	$	50,000

Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]

					Estimated
		Fair Value		Amortization	Useful Life
		(In thousands)		Method	(In months)
				(unaudited)
Developed intellectual property		$	11,504	Straight-line	60
Customer relationships			6,920	Accelerated	36
Contract backlog			5,155	Straight-line	9
Non-competition agreement			421	Straight-line	60
	Total	$	24,000

Business Acquisition, Pro Forma Information [Table Text Block]

	Three Months Ended		Six Months Ended
	September 30, 2013		September 30, 2013
	(unaudited)		(unaudited)
Pro forma net revenues	$	85,901	$	180,985
Pro forma net income	$	5,721	$	10,156
Pro forma net income per share (basic)	$	0.18	$	0.33
Pro forma net income per share (diluted)	$	0.18	$	0.32